JPH09210389A - Heat exchanger and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further enhance air conditioning performance by raising the density of a heat exchanger arranged in a case body. SOLUTION: Respective slits are arranged on a side plate and a plate fin of a heat exchanger 29 and the side plate and the plate fin are bent alternately in zig zag to be molded in multiple stages through the slits. In the heat exchanger 29 subjected to the multiple-stage bent molding, a first stage part 39 thereof is arranged with respect to an air suction port 23 and the parts following the second stage are arranged with respect to the respective air suction ports 24 and 25 while a cross flow fan 7 is installed below the parts 40-42 following the second stage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger arranged in a housing of an air conditioner by bending in multiple stages and an air conditioner in which the heat exchanger is arranged in a housing in which a front panel and a base are combined.

[0002]

2. Description of the Related Art FIG. 9 is a side view of an air conditioner.

A box-shaped casing 3 is formed by combining and attaching a front panel 2 to a base 1. The front panel 2 is formed with air intake ports 4 and 5.

A plate fin tube type heat exchanger (hereinafter abbreviated as a heat exchanger) 6 and a cross flow fan 7 are arranged in such a casing 3.

Of these, the heat exchanger 6 is provided with side plates 8 and 9 on both sides as shown in FIG.
A plurality of plate fins 10 are arranged between the plate fins 9 and the tubes 11 through which the refrigerant flows are arranged between the side plates 8 and 9 and the plate fins 10.

Such a heat exchanger 6 is arranged in the housing 3 by bending it in a substantially arcuate shape in three stages. For this reason, the side plates 8 and 9 and the plate fins 10 have the structure shown in FIG. A
As shown in the front view of the side plate 8 when viewed from the direction, each notch 12 is formed on the air suction port 4 side. Note that 13
Are the holes through which the tube 11 passes.

Therefore, the heat exchanger 6 has these side plates 8, 9
Also, the plate fin 10 is bent in a substantially arcuate shape through the respective cuts 12 and arranged in the housing 3.

[0008]

However, by thus bending the heat exchanger 6 into a substantially arc shape and disposing the heat exchanger 6 in the housing 3, the density of the heat exchanger 6 in the housing 3 is increased,
Although the air conditioning performance has been improved, further improvement of the air conditioning performance is required.

Therefore, an object of the present invention is to provide a heat exchanger that can be arranged in a housing of an air conditioner with high density to improve the performance of the air conditioner.

Another object of the present invention is to provide an air conditioner capable of improving the air conditioning performance by increasing the density of heat exchangers arranged in the housing.

[0011]

According to a first aspect of the present invention, side plates are provided on both sides, plate fins are arranged between the side plates, and a tube through which a refrigerant flows is arranged between the side plates and the plate fins. In a heat exchanger formed by bending and forming in multiple stages along the length direction of the plate fins, at least two or more slits for bending and forming in multiple stages are alternately provided on the side plate and the plate fin from both sides of the heat exchanger. The heat exchanger is formed by bending the slits in a zigzag shape alternately in multiple stages.

[0012] Such a heat exchanger is formed by bending the zigzag shape alternately in multiple stages through each slit, and by disposing the heat exchanger in the housing of an air conditioner, for example, The performance of the air conditioner can be improved by arranging the air conditioner in a high density in the housing of the air conditioner.

According to a second aspect of the present invention, in an air conditioner in which a heat exchanger and a cross flow fan are arranged in a box-shaped housing, the heat exchanger is formed by bending in multiple stages, and the front surface and the upper surface of the housing. An air suction port is provided on the front side of the housing, and the first stage portion of the heat exchanger is formed by bending with respect to the air suction port on the front surface of the housing. This is an air conditioner in which parts after the second stage are arranged and a cross flow fan is installed below the parts after the second stage of these heat exchangers.

In such an air conditioner, a heat exchanger formed by bending in multiple stages is arranged such that the bent first stage portion is arranged with respect to the air intake port on the front surface of the housing, and the second and subsequent stages are arranged. By arranging the portion with respect to the air intake port on the upper surface of the casing and by disposing the crossflow fan below these portions of the second and subsequent stages, it is possible to increase the density of the heat exchanger arranged in the casing. The air conditioning performance can be further improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of an air conditioner viewed from the side.

A front panel 21 is combined with the base 20 to form a box-shaped housing 22.

The front panel 21 has an air suction port 23 formed on the entire surface thereof and air suction ports 24, 25 formed on the upper surface thereof. The air outlet 26 on the lower side of the front panel 21 is provided with louvers 27 and 28 for changing the air outlet direction.

Inside such a housing 22, heat exchangers (plate fin tube type heat exchangers) 29, which are zigzag and are alternately bent in multiple stages, are arranged.

This heat exchanger 29 is provided with side plates 30 and 31 on both sides as shown in FIG.
A plurality of plate fins 10 are arranged between 0 and 31, and a tube 11 through which a refrigerant flows is arranged between the side plates 8 and 9 and the plate fins 10.

Of these, the side plates 8 and 9 and the plate fin 1
0 is the air intake port 23 of the air conditioner as shown in FIG.
The slits 32 to 34 in the direction passing through the side and the air outlet side.
Are formed. In addition, 35 is each hole which lets the tube 11 pass.

Further, bending supporting portions 36 to 38, which connect the portions separated by the slits 32 to 34 and separated from each other, are alternately provided integrally on both edges of the side plates 8 and 9.

Therefore, in the heat exchanger 29, as shown in FIG.
And each of the bending support portions 36 to
38 connected to form a first stage portion 39 and a second stage portion 4
0, a third stage portion 41 and a fourth stage portion 42 are formed as heat exchangers separated.

The heat exchanger 29 bent in this way
Is a so-called air suction port 2 that is formed by alternately bending in a zigzag shape in multiple stages with respect to the air suction port 23 side.
It will be laid out in a bending manner with peaks and valleys on the 3 side.

In this heat exchanger 29, the first step portion 39 is arranged with respect to the air intake port 23 on the front surface of the front panel 21, and the second to fourth step portions 40 to 42 are set on the upper surface of the front panel 21. Is arranged for each of the air suction ports 24, 25 of.

The first stage portion 3 of the heat exchanger 29
9 lower part, second and third stage parts 40, 41 lower part, 4th
Drain pans 43 to 45 for receiving the dew adhering to the heat exchanger 29 are provided in the lower part of the step portion 42.

A cross flow fan 7 is arranged below the second to fourth stage portions 40 to 42 of the heat exchanger 29 in the housing 22.

With such a structure, when the cross flow fan 7 is driven, ambient air is absorbed by the front panel 2.
No. 1 of the heat exchanger 29.
~ Is sent to the fourth stage parts 39-42.

Here, the air is the first of these heat exchangers 29.
The heat is exchanged in the fourth stage portions 39 to 42, and the cold air or the hot air is blown from the air outlet 26 by the driving of the crossflow fan 7.

As described above, in the first embodiment, the side plates 8 and 9 of the heat exchanger 29 and the plate fins 10 are arranged.
Each slit 32 to 34 is provided in
Since it is formed by bending in a zigzag manner in multiple stages via 34, it is possible to arrange the heat exchangers 29 having a large area for exchanging heat within the limited housing 22 of the air conditioner with high density.

Therefore, in the heat exchanger 29 formed by bending in multiple stages, the first stage portion 39 thereof is arranged with respect to the air suction port 23, and the second and subsequent stages are arranged with respect to each air suction port 24, 25. In addition, since the cross flow fan 7 is installed below these second and subsequent parts 40 to 42, the heat exchanger 29 having a large heat exchange area is arranged in the housing 22 in a limited space. That is, the heat exchangers 29 can be arranged in the housing 22 with high density, and the air conditioning performance of the air conditioner can be further improved.

Next, a second embodiment of the present invention will be described. The same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 5 is a configuration diagram of the air conditioner viewed from the side.

Inside the housing 22, there are arranged heat exchangers 50 which are zigzag and are alternately bent in multiple stages.

This heat exchanger 50 is provided with the side plates 51 shown in FIG. 6 and a plurality of plate fins 1 are provided between the side plates 51, as in the heat exchanger of the first embodiment.
0 is arranged, and the tube 11 through which the refrigerant flows is arranged between the side plate 51 and the plate fin 10.

Of these, the side plate 51 and the plate fin 10
As shown in FIG. 6, the slits 52 and 53 are formed on both sides of the air inlet 23 side and the air outlet side of the air conditioner.

The side plate 51 and the plate fin 1 are also provided.
On both edges of 0, bending support portions 54 and 55 that connect the portions that are divided and separated by the slits 52 and 53 are alternately and integrally provided.

Therefore, as shown in FIG. 6, the heat exchanger 50 has slits 52 and 53 in each direction (e) to (g).
Each of the bending support portions 54,
Connected by 55, as shown in FIG.
6, formed as a heat exchanger separated into a second stage portion 57 and a third stage portion 58.

The heat exchanger 50 bent in this way
Is a zigzag-shaped multi-tiered and alternately-folded shape for each of the air suction ports 23 to 25, and is laid out so that the so-called air suction ports 23 to 25 side has ridges and valleys. Become.

In the heat exchanger 50, the first step portion 56 is arranged with respect to the air intake port 23 on the front surface of the front panel 21, and the second and third step portions 57 and 58 are provided on the upper surface of the front panel 21. Is arranged for each of the air suction ports 24, 25 of.

A cross flow fan 7 is arranged below the second and third stage portions 57 and 58 of the heat exchanger 50 in the housing 22.

With such a structure, when the cross flow fan 7 is driven, air is supplied to the air intake port 23 on the front surface of the front panel 21 and the air intake ports 24 on the upper surface.
25, respectively, and sent to the first to third stage portions 56 to 58 of the heat exchanger 50.

Here, the air is the first of these heat exchangers 50.
The heat is exchanged at the third stage portions 56 to 58, and the cold air or the warm air is blown from the air outlet 26 by the drive of the cross flow fan 7.

As described above, in the second embodiment, the side plates 51 of the heat exchanger 50 and the plate fins 10 are provided with the slits 52 and 53, respectively.
Since it is bent and formed in multiple stages in a zigzag pattern alternately via 3, the heat exchangers 50 having a large area for exchanging heat in the limited housing 22 of the air conditioner can be arranged at high density.

Therefore, the heat exchanger 50 formed by bending in multiple stages is arranged such that the first stage portion 56 thereof is arranged with respect to the air suction port 23, and the portions 57 and 58 of the second and subsequent stages are arranged in each air suction port 2.
Since the cross flow fan 7 is arranged below the second and subsequent portions 57 and 58, a large heat exchange area is provided in the housing 22 in a limited space. The heat exchanger 50 having is arranged, that is, the housing 22.
The heat exchangers 50 can be arranged in high density inside, and the air conditioning performance of the air conditioner can be further improved.

The present invention is not limited to the first and second embodiments described above, but may be modified as follows.

For example, as shown in FIG. 7, the side plates 60 and the plate fins 61 of the heat exchanger do not completely separate the side plates 60 and the plate fins 61 when they are bent in multiple stages, but rather the slits 62 to 64 have different slits. The depth may be formed to be shallow, and the side plate 60 and the plate fin 61 may be connected and bent as shown in FIG.

[0048]

As described above in detail, according to claim 1 of the present invention, it is possible to provide a heat exchanger which can be arranged in a housing of an air conditioner with high density to improve the performance of the air conditioner.

According to the second aspect of the present invention, it is possible to provide an air conditioner capable of further improving the air conditioning performance by increasing the density of the heat exchangers arranged in the housing.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of an air conditioner according to the present invention.

FIG. 2 is a configuration diagram of a heat exchanger applied to the air conditioner.

FIG. 3 is a configuration diagram of a side plate of the heat exchanger.

FIG. 4 is a view showing a heat exchanger bent in zigzag in multiple stages.

FIG. 5 is a configuration diagram showing a second embodiment of an air conditioner according to the present invention.

FIG. 6 is a configuration diagram of a side plate of the heat exchanger.

FIG. 7 is a configuration diagram showing a modification of the side plates and plate fins of the heat exchanger.

FIG. 8 is a configuration diagram showing bending of the same side plate and plate fins.

FIG. 9 is a configuration diagram of a conventional air conditioner.

FIG. 10 is a configuration diagram of a heat exchanger.

FIG. 11 is a configuration diagram of a side plate of a conventional heat exchanger.

[Explanation of symbols]

7 ... Cross flow fan, 20 ... Base, 21 ... Front panel, 22 ... Housing, 23-25 ... Air inlet, 29, 50 ... Heat exchanger (Plate fin tube type heat exchanger), 30, 31, 51 ... Side plate, 32-34, 52, 53 ... Slit, 39, 56 ... First stage part (heat exchanger), 40, 57 ... Second stage part (heat exchanger), 41, 58 ... Third stage part ( Heat exchanger), 42 ... Fourth stage part (heat exchanger).

Claims (2)

[Claims] 1. A side plate is provided on both sides, plate fins are arranged between the side plates, a tube through which a refrigerant flows is arranged between the side plates and the plate fins, and a plurality of stages are provided along the length direction of the plate fin. A heat exchanger formed by bending and forming in the side plate and the plate fin, at least two or more slits for bending and forming in multiple stages are alternately provided from both sides of the heat exchanger, and the slits are zigzag-shaped. A heat exchanger characterized by being formed by alternately bending and forming in multiple stages. 2. An air conditioner in which a heat exchanger and a cross flow fan are arranged in a box-shaped housing, wherein the heat exchanger is formed by bending in multiple stages, and air is sucked into a front surface and an upper surface of the housing. An opening is provided, and a first stage portion of the heat exchanger formed by bending is arranged with respect to an air suction port on the front surface of the housing, and the heat exchanger with respect to the air suction opening on the upper surface of the housing. An air conditioner in which parts of the second and subsequent stages are arranged and the cross flow fan is installed below the parts of the second and subsequent stages of these heat exchangers.